ILHAM, M.; NASUTION, N. . Korelasi Antara Pola Tidur Dan Konsentrasi Belajar Peserta Didik Di SMA Tunas Gajah Mada Medan. Journal of Innovative and Creativity, [S. l.], v. 5, n. 2, p. 18142–18147, 2025. DOI: 10.31004/joecy.v5i2.2573. Disponível em: https://joecy.org/index.php/joecy/article/view/2573. Acesso em: 17 oct. 2026.